package com.xiaoxuzhu;

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
/**
 * Description: 
 *
 * @author xiaoxuzhu
 * @version 1.0
 *
 * <pre>
 * 修改記錄:
 * 修改后版本	        修改人		修改日期			修改內(nèi)容
 * 2022/5/4.1	    xiaoxuzhu		2022/5/4		    Create
 * </pre>
 * @date 2022/5/4
 */

public class ZipTextFileFrame extends JFrame {

    /**
     *
     */
    private static final long serialVersionUID = -8885017327239429018L;
    private JPanel contentPane;
    private JTextField chooseTextField;
    private JTable table;
    private File[] textFiles;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ZipTextFileFrame frame = new ZipTextFileFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public ZipTextFileFrame() {
        setTitle("壓縮所有文本文件");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(new BorderLayout(0, 0));

        JPanel choosePanel = new JPanel();
        contentPane.add(choosePanel, BorderLayout.NORTH);

        chooseTextField = new JTextField();
        choosePanel.add(chooseTextField);
        chooseTextField.setColumns(18);

        JButton chooseButton = new JButton("選擇文件夾");
        chooseButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_chooseButton_actionPerformed(arg0);
            }
        });
        choosePanel.add(chooseButton);

        JPanel buttonPanel = new JPanel();
        contentPane.add(buttonPanel, BorderLayout.SOUTH);

        JButton zipButton = new JButton("開始?jí)嚎s");
        zipButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_zipButton_actionPerformed(arg0);
            }
        });
        buttonPanel.add(zipButton);

        JScrollPane scrollPane = new JScrollPane();
        contentPane.add(scrollPane, BorderLayout.CENTER);

        table = new JTable();
        scrollPane.setViewportView(table);
    }

    protected void do_chooseButton_actionPerformed(ActionEvent arg0) {
        JFileChooser fileChooser = new JFileChooser();
        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        fileChooser.setMultiSelectionEnabled(false);
        int result = fileChooser.showOpenDialog(this);
        if (result == JFileChooser.APPROVE_OPTION) {
            File selectFile = fileChooser.getSelectedFile();
            chooseTextField.setText(selectFile.getAbsolutePath());
            textFiles = selectFile.listFiles(new FileFilter() {

                @Override
                public boolean accept(File file) {
                    if (file.getPath().endsWith(".txt")) {
                        return true;
                    }
                    return false;
                }
            });
            DefaultTableModel model = (DefaultTableModel) table.getModel();
            model.setColumnIdentifiers(new Object[] { "序號(hào)", "文件名" });
            for (int i = 0; i < textFiles.length; i++) {
                model.addRow(new Object[] { i + 1, textFiles[i].getName() });
            }
            table.setModel(model);
        }
    }

    protected void do_zipButton_actionPerformed(ActionEvent arg0) {
        if (chooseTextField.getText().length() == 0) {
            JOptionPane.showMessageDialog(this, "請(qǐng)選擇要壓縮的文件夾", "", JOptionPane.WARNING_MESSAGE);
            return;
        }
        String zipFilePath = new File(chooseTextField.getText()).getParent();
        try {
            zipFile(textFiles, new File(zipFilePath + File.separator + "java.zip"));
            JOptionPane.showMessageDialog(this, "完成壓縮");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void zipFile(File[] files, File targetZipFile) throws IOException {
        // 利用給定的targetZipFile對(duì)象創(chuàng)建文件輸出流對(duì)象
        FileOutputStream fos = new FileOutputStream(targetZipFile);
        ZipOutputStream zos = new ZipOutputStream(fos);// 利用文件輸出流創(chuàng)建壓縮輸出流
        byte[] buffer = new byte[1024];// 創(chuàng)建寫入壓縮文件的數(shù)組
        for (File file : files) {// 遍歷全部文件
            ZipEntry entry = new ZipEntry(file.getName());// 利用每個(gè)文件的名字創(chuàng)建ZipEntry對(duì)象
            FileInputStream fis = new FileInputStream(file);// 利用每個(gè)文件創(chuàng)建文件輸入流對(duì)象
            zos.putNextEntry(entry);// 在壓縮文件中添加一個(gè)ZipEntry對(duì)象
            int read = 0;
            while ((read = fis.read(buffer)) != -1) {
                zos.write(buffer, 0, read);// 將輸入寫入到壓縮文件
            }
            zos.closeEntry();// 關(guān)閉ZipEntry
            fis.close();// 釋放資源
        }
        zos.close();
        fos.close();
    }

}

壓縮成功：

查看壓縮結(jié)果：

二、題目描述-壓縮文件解壓到指定文件夾

1、題目

題目：實(shí)現(xiàn)一個(gè)壓縮文件解壓到指定文件夾的工具

2、解題思路

創(chuàng)建一個(gè)類：UnZipTextFileFrame

先獲取一個(gè)zip格式的壓縮文件

再指定要解壓縮存放的文件夾

使用JAVA自帶的壓縮工具包來實(shí)現(xiàn)解壓縮功能

利用用戶選擇的ZIP文件創(chuàng)建ZipFile對(duì)象

遍歷ZipFile對(duì)象的枚舉變量，獲得ZipEntry對(duì)象

獲得的ZipEntry對(duì)象的輸入流，將輸入流寫入到本地文件，這樣就達(dá)到了解壓縮功能。

3、代碼詳解

package com.xiaoxuzhu;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.table.DefaultTableModel;
/**
 * Description: 
 *
 * @author xiaoxuzhu
 * @version 1.0
 *
 * <pre>
 * 修改記錄:
 * 修改后版本	        修改人		修改日期			修改內(nèi)容
 * 2022/5/4.1	    xiaoxuzhu		2022/5/4		    Create
 * </pre>
 * @date 2022/5/4
 */

public class UnZipTextFileFrame extends JFrame {

    /**
     *
     */
    private static final long serialVersionUID = -7525621255251725313L;
    private JPanel contentPane;
    private JTextField sourceTextField;
    private JTable table;
    private File zipFile;
    private JTextField targetTextField;
    private File targetFile;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    UnZipTextFileFrame frame = new UnZipTextFileFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public UnZipTextFileFrame() {
        setTitle("壓縮文件解壓到指定文件夾");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(new BorderLayout(0, 0));

        JPanel choosePanel = new JPanel();
        contentPane.add(choosePanel, BorderLayout.NORTH);

        sourceTextField = new JTextField();
        choosePanel.add(sourceTextField);
        sourceTextField.setColumns(10);

        JButton sourceButton = new JButton("Zip文件");
        sourceButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_sourceButton_actionPerformed(arg0);
            }
        });
        choosePanel.add(sourceButton);

        targetTextField = new JTextField();
        choosePanel.add(targetTextField);
        targetTextField.setColumns(10);

        JButton targetButton = new JButton("解壓到");
        targetButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_targetButton_actionPerformed(arg0);
            }
        });
        choosePanel.add(targetButton);

        JPanel buttonPanel = new JPanel();
        contentPane.add(buttonPanel, BorderLayout.SOUTH);

        JButton unzipButton = new JButton("開始解壓縮");
        unzipButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_unzipButton_actionPerformed(arg0);
            }
        });
        buttonPanel.add(unzipButton);

        JScrollPane scrollPane = new JScrollPane();
        contentPane.add(scrollPane, BorderLayout.CENTER);

        table = new JTable();
        scrollPane.setViewportView(table);
    }

    protected void do_sourceButton_actionPerformed(ActionEvent arg0) {
        JFileChooser fileChooser = new JFileChooser();
        fileChooser.setFileFilter(new FileNameExtensionFilter("文本文件", "zip"));
        fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
        int result = fileChooser.showOpenDialog(this);
        if (result == JFileChooser.APPROVE_OPTION) {
            zipFile = fileChooser.getSelectedFile();
            sourceTextField.setText(zipFile.getAbsolutePath());
        }
    }

    protected void do_targetButton_actionPerformed(ActionEvent arg0) {
        JFileChooser fileChooser = new JFileChooser();
        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        int result = fileChooser.showOpenDialog(this);
        if (result == JFileChooser.APPROVE_OPTION) {
            targetFile = fileChooser.getSelectedFile();
            targetTextField.setText(targetFile.getAbsolutePath());
        }
    }

    @SuppressWarnings("rawtypes")
    protected void do_unzipButton_actionPerformed(ActionEvent arg0) {
        DefaultTableModel model = (DefaultTableModel) table.getModel();// 獲得表格模型
        model.setColumnIdentifiers(new Object[] { "序號(hào)", "文件名" });// 設(shè)置表頭
        int id = 1;// 聲明序號(hào)變量
        ZipFile zf = null;
        try {
            zf = new ZipFile(zipFile);// 利用用戶選擇的ZIP文件創(chuàng)建ZipFile對(duì)象
            Enumeration e = zf.entries();// 創(chuàng)建枚舉變量
            while (e.hasMoreElements()) {// 遍歷枚舉變量
                ZipEntry entry = (ZipEntry) e.nextElement();// 獲得ZipEntry對(duì)象
                if (!entry.getName().endsWith(".txt")) {// 如果不是文本文件就不進(jìn)行解壓縮
                    continue;
                }
                // 利用用戶選擇的文件夾和ZipEntry對(duì)象名稱創(chuàng)建解壓后的文件
                File currentFile = new File(targetFile + File.separator + entry.getName());
                FileOutputStream out = new FileOutputStream(currentFile);
                InputStream in = zf.getInputStream(entry);// 利用獲得的ZipEntry對(duì)象的輸入流
                int buffer = 0;
                while ((buffer = in.read()) != -1) {// 將輸入流寫入到本地文件
                    out.write(buffer);
                }
                model.addRow(new Object[] { id++, currentFile.getName() });// 增加一行表格數(shù)據(jù)
                in.close();// 釋放資源
                out.close();
            }
            table.setModel(model);// 更新表格
            JOptionPane.showMessageDialog(this, "解壓縮完成");// 提示用戶解壓縮完成
        } catch (ZipException e) {// 捕獲異常
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (zf != null) {
                try {
                    zf.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}

解壓成功：

三、題目描述-壓縮所有子文件夾

1、題目

題目：做一個(gè)壓縮所有子文件夾的工具

2、解題思路

創(chuàng)建一個(gè)類：ZipDirectoryFrame

使用ZipDirectoryFrame繼承JFrame構(gòu)建窗體

壓縮包含子文件夾的文件夾方案和壓縮全是文件的文件夾類似，區(qū)別在如果找出包含子文件夾的文件夾所有文件。

并且構(gòu)造ZipEntry時(shí)，不要有重名的情況。

可以用要壓縮文件夾中所有文件的相對(duì)路徑來做區(qū)分。

ZipEntry entry = new ZipEntry(string.substring(base.length() + 1, string.length()));// 利用要壓縮文件的相對(duì)路徑創(chuàng)建ZipEntry對(duì)象

壓縮文件會(huì)放在選擇文件夾的同級(jí)目錄，并以選擇文件夾的文件夾名+“.zip”命名。

3、代碼詳解

package com.xiaoxuzhu;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
/**
 * Description: 壓縮所有子文件夾
 *
 * @author xiaoxuzhu
 * @version 1.0
 *
 * <pre>
 * 修改記錄:
 * 修改后版本	        修改人		修改日期			修改內(nèi)容
 * 2022/5/4.1	    xiaoxuzhu		2022/5/4		    Create
 * </pre>
 * @date 2022/5/4
 */

public class ZipDirectoryFrame extends JFrame {

    /**
     *
     */
    private static final long serialVersionUID = -138842864977841594L;
    private JPanel contentPane;
    private JTextField chooseTextField;
    private JTable table;
    private File selectFile;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ZipDirectoryFrame frame = new ZipDirectoryFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public ZipDirectoryFrame() {
        setTitle("壓縮所有子文件夾");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(new BorderLayout(0, 0));

        JPanel choosePanel = new JPanel();
        contentPane.add(choosePanel, BorderLayout.NORTH);

        chooseTextField = new JTextField();
        choosePanel.add(chooseTextField);
        chooseTextField.setColumns(18);

        JButton chooseButton = new JButton("選擇文件夾");
        chooseButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_chooseButton_actionPerformed(arg0);
            }
        });
        choosePanel.add(chooseButton);

        JPanel buttonPanel = new JPanel();
        contentPane.add(buttonPanel, BorderLayout.SOUTH);

        JButton zipButton = new JButton("開始?jí)嚎s");
        zipButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                do_zipButton_actionPerformed(arg0);
            }
        });
        buttonPanel.add(zipButton);

        JScrollPane scrollPane = new JScrollPane();
        contentPane.add(scrollPane, BorderLayout.CENTER);

        table = new JTable();
        scrollPane.setViewportView(table);
    }

    protected void do_chooseButton_actionPerformed(ActionEvent arg0) {
        JFileChooser fileChooser = new JFileChooser();
        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        fileChooser.setMultiSelectionEnabled(false);
        int result = fileChooser.showOpenDialog(this);
        if (result == JFileChooser.APPROVE_OPTION) {
            selectFile = fileChooser.getSelectedFile();
            chooseTextField.setText(selectFile.getAbsolutePath());
        }
    }

    protected void do_zipButton_actionPerformed(ActionEvent arg0) {

        List<String> path = new ArrayList<String>();
        getPath(selectFile, path);
        DefaultTableModel model = (DefaultTableModel) table.getModel();
        model.setColumnIdentifiers(new Object[] { "序號(hào)", "文件" });
        int id = 1;
        for (String string : path) {
            model.addRow(new Object[] { id++, new File(string).getName() });
        }
        String targetZipFilePath = selectFile.getParent() +File.separator + selectFile.getName() + ".zip";
        try {
            zipFile(path, new File(targetZipFilePath), selectFile.getAbsolutePath());
            JOptionPane.showMessageDialog(this, "文件夾壓縮成功");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void getPath(File rootFile, List<String> path) {
        File[] files = rootFile.listFiles();
        for (File file : files) {
            if (file.isDirectory()) {
                getPath(file, path);
            } else {
                path.add(file.getAbsolutePath());
            }
        }
    }

    private void zipFile(List<String> path, File targetZipFile, String base) throws IOException {
        // 根據(jù)給定的targetZipFile創(chuàng)建文件輸出流對(duì)象
        FileOutputStream fos = new FileOutputStream(targetZipFile);
        ZipOutputStream zos = new ZipOutputStream(fos);// 利用文件輸出流對(duì)象創(chuàng)建Zip輸出流對(duì)象
        byte[] buffer = new byte[1024];
        for (String string : path) {// 遍歷所有要壓縮文件的路徑
            File currentFile = new File(string);
            ZipEntry entry = new ZipEntry(string.substring(base.length() + 1, string.length()));// 利用要壓縮文件的相對(duì)路徑創(chuàng)建ZipEntry對(duì)象
            FileInputStream fis = new FileInputStream(currentFile);
            zos.putNextEntry(entry);
            int read = 0;
            while ((read = fis.read(buffer)) != -1) {// 將數(shù)據(jù)寫入到Zip輸出流中
                zos.write(buffer, 0, read);
            }
            zos.closeEntry();// 關(guān)閉ZipEntry對(duì)象
            fis.close();
        }
        zos.close();// 釋放資源
        fos.close();
    }

}

選擇文件夾